Ethereum (ETH) is still generating more fee revenue than Solana (SOL) on a headline basis, but the more consequential story for 2026 is shifting beneath the surface: on-chain profitability is increasingly determined not by where fees are paid, but by which network structure is able to ‘absorb' and retain them. As of March 24 (UTC), Ethereum recorded $9.66 million in 24-hour fees, down 7.08% from the prior day, while Solana logged $4.38 million, up 4.98%.